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Klone Science

Started by JakeFuzz, June 27, 2014, 06:52:00 PM

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raulduke

Thanks for taking the time to do this.

Now all we need is an original Centaur for analysis, to finally slay the unicorn and put this to bed!

cooder

BigNoise Amplification

JakeFuzz

#62
Updated the impedance plot. Looks like input hovers around 2Meg then some inductive reactance comes into play. Output is around 450 over the range.

Here is a collection of the circuit changes made to Klones. Referencing this schematic:
http://1.bp.blogspot.com/-5aEPAyJYOzo/U4ice4jXIvI/AAAAAAAAHiw/7n5jViJkyIQ/s1600/KlonCentaur-Corrected-2009.GIF

The capacitor plots refers to the changing of C14 from 3n9 to 8n2. The resistor plots are a recently discovered potential error in the original schematic mentioned earlier where R21 and R23 are swapped. Sorry for the wacky colors; I didn't want to make three different plots so some things are overlapping but it is pretty easy to understand if you look at it long enough. Very big high end changes with the resistor swap. Gain is fixed at 50% and the treble control is shown at 25, 50 and 75 percent for each circuit.


blearyeyes

Little cornfused here, is the plot for the resistors cumulative with the Cap change?
And "Stock" is which existing clone circuits?

Thanks!

JakeFuzz

The resistor change is just the stock circuit shown in the previously linked schematic with the values of C21 and C23 switched.

The cap change is the stock circuit with the value of C14 changed to 8.2nF.

The stock circuit is is the previously linked schematic without any changes.

blearyeyes

Awesome thanks!


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juansolo

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jtn191

That's interesting! iirc, the 8.2nf swap was described as boosting the bass...

juansolo

Quote from: jtn191 on July 08, 2014, 09:39:07 PM
That's interesting! iirc, the 8.2nf swap was described as boosting the bass...

We went for it because vs a Gold Centaur, our build sounded to be lacking a little bit of a mid hump. The fact that is exactly what it's added makes me feel a bit better that my ears still work (reasonably) ok ;)
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juansolo

Quote from: juansolo on June 27, 2014, 08:09:51 PM
As logic doesn't work with the cork-sniffers, actual verifiable data has little chance either.

I've had similar arguments with audiophiles. There comes a point where you just leave them to it.

My point, made: http://www.thegearpage.net/board/showthread.php?t=1455624&page=2
Gnomepage - DIY effects library & stuff in the Stompage bit
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jtn191

haha "graphs were designed to be pretty". no, they were designed to be factual.

mattlee0037

Morans. Data is useless. Oscilloscopes don't play guitars

pickdropper

Quote from: mattlee0037 on July 16, 2014, 08:53:10 PM
Morans. Data is useless. Oscilloscopes don't play guitars

I used to use an oscilloscope that could play Asteroids. Does that count?
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juansolo

Gnomepage - DIY effects library & stuff in the Stompage bit
"I excite very large doom for days" - playpunk

alanp

Quote from: jtn191 on July 16, 2014, 06:42:19 PM
haha "graphs were designed to be pretty". no, they were designed to be factual.

That said, you do have to be careful, especially with graphs of statistics, where all kindsa 'orrible visual manipulation can take place.
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